> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://respan.ai/docs/apis/behaviors/delete-custom-behavior/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://respan.ai/_mcp/server.

# Delete a custom behavior

DELETE https://api.respan.ai/api/pulses/behaviors/custom/{id}/

Permanently deletes a custom behavior. New spans stop being scored for it within about a minute. Scores already recorded are not deleted.

Reference: https://respan.ai/docs/apis/behaviors/delete-custom-behavior

## Authentication

- `Authorization` header (bearer token, required) — Use your Respan API key for Respan API authentication. Enter only the Respan API key value; clients send Authorization: Bearer \<RESPAN\_API\_KEY>. For /api/responses, provider credentials such as Perplexity, OpenAI, or Azure OpenAI go in Settings -> Providers or respan\_params.credential\_override in the request body, not in this authentication field.

## Request

### Path parameters

- `id` (string, required) — Custom behavior ID.

## Errors

### 403 Forbidden Error

Forbidden: the API key is missing, invalid or expired; the key doesn't grant `custom_behaviors:delete` (Write access does); behaviors are turned off for the organization.

- `detail` (string, required)

### 404 Not Found Error

No custom behavior with this ID in your organization.

- `detail` (string, required)

### 429 Too Many Requests Error

Rate limited. This endpoint allows 30 requests per minute per organization.

- `detail` (string, required)

## Examples

**SDK Code**

```python
import requests

url = "https://api.respan.ai/api/pulses/behaviors/custom/6f1c2a9e-3b7d-4c55-9a0e-2d8f4b1c7e93/"

headers = {"Authorization": "Bearer <respanApiKey>"}

response = requests.delete(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.respan.ai/api/pulses/behaviors/custom/6f1c2a9e-3b7d-4c55-9a0e-2d8f4b1c7e93/';
const options = {method: 'DELETE', headers: {Authorization: 'Bearer <respanApiKey>'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.respan.ai/api/pulses/behaviors/custom/6f1c2a9e-3b7d-4c55-9a0e-2d8f4b1c7e93/"

	req, _ := http.NewRequest("DELETE", url, nil)

	req.Header.Add("Authorization", "Bearer <respanApiKey>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.respan.ai/api/pulses/behaviors/custom/6f1c2a9e-3b7d-4c55-9a0e-2d8f4b1c7e93/")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Delete.new(url)
request["Authorization"] = 'Bearer <respanApiKey>'

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.delete("https://api.respan.ai/api/pulses/behaviors/custom/6f1c2a9e-3b7d-4c55-9a0e-2d8f4b1c7e93/")
  .header("Authorization", "Bearer <respanApiKey>")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('DELETE', 'https://api.respan.ai/api/pulses/behaviors/custom/6f1c2a9e-3b7d-4c55-9a0e-2d8f4b1c7e93/', [
  'headers' => [
    'Authorization' => 'Bearer <respanApiKey>',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.respan.ai/api/pulses/behaviors/custom/6f1c2a9e-3b7d-4c55-9a0e-2d8f4b1c7e93/");
var request = new RestRequest(Method.DELETE);
request.AddHeader("Authorization", "Bearer <respanApiKey>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Authorization": "Bearer <respanApiKey>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.respan.ai/api/pulses/behaviors/custom/6f1c2a9e-3b7d-4c55-9a0e-2d8f4b1c7e93/")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "DELETE"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```